Today i’m trying to make a Sidebar by following a tutorial after many packages… So tutorial link can be found at youtube here Here is my code who react don’t like: ERROR: Line 24:25: Expected an assignment or function call and instead saw an expression no-unused-expressions Search for the ke…
Tag: javascript
Do I need to use useEffect to rerender a component?
I had an issue getting a component to update when it´s props changed. I got it to work using useEffect, but am unsure if it is the correct way to solve my problem. This is my code: I was thinking when I updated the props of InputWithDefaultValue it would get rerendered. Is using useEffect to get the component…
Discord bot only replying to initator
I am starting with a new Discord bot using discord.js. I am still learning things but am curious if it is possible to send a reply to only the initiator, not the channel. Channel.send and message.reply are both public to all. Answer To dm the person who said the message do To send it to someone else,
Vue: Removing item from v-for list leaves behind canvas item
This is a hard one to phrase in a title, but pretty easy to explain with some setup. I have a list of components. Each component in the list looks like the following: Each component has a small canvas element that is used to display a preview of the item, It’s name, and a delete button to remove it from
Picking a random item from array with equal distribution
I want to pick a random item from an array at random. Is the way to go, but as far as I know this will cause a Uniform distribution to occur which means that the average is (lowbound+upperbound)/2 translated to an array with 10 elements the lower bound is the first element and the upper bound is the last elem…
Load HTML page in a service with its own CSS Angular
I have a Service, PrintService that I have added to my application. The Service extracts elements from a page and renders another window with the contents of the extracted elements. This works. Print Service on Stackblitz My Problem now is this, I need to be remove the css styles from the service above to its…
How to grab a specific text value from a big text or html file [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago. Improve this question I would want to get only the path value form the below text/html. Actually…
How to avoid re-rendering when i pass an object as prop to child component?
I have parent component with multiple child components. Different types of data will be passed to child components after getting data from api. Some of the components will get object as a prop. I am trying to avoid rerenders in that component. Even if the data is same it is rerendering. How can i avoid this r…
Javascript How to filter through nested array data
I have a search field which filters through an array when I’m typing. So far it works ok, but I cannot search within the “courses” array! How can I achieve this? The complete array looks like this: Here is my JS code so far, where I can search through all fields, except the “courses…
My app does not want to re-render, however the list in the context does
Short story: I am making my own GIS (geographic information system) and want to be able to upload JSON files with geographical data. I do not however want to save files in a database, just in a list. Furthermore I’m using Context to send data to the (leaflet) component. When I upload new JSONs to the la…